allocate a multisample render target (window or FBO) and make it the draw target, and

enable multisample rasterization (glEnable( GL_MULTISAMPLE )).

Do you want multisample for the window or an off-screen FBO? If window, do you want it for GLX (UNIX/Linux), WGL (Windows), or GLUT (both)?

Here's an example rendering multisample to a window with GLUT. Let us know if you want one of the other cases. In the following code, allocation of the multisample render target (#1) is effected with "glutInitDisplayMode( ... GLUT_MULTISAMPLE);" and of course multisample rasterization is enabled (#2) in the standard way: glEnable( GL_MULTISAMPLE ).

I am using MS Visual Studio 10 in Win7. glxinfo doesn't seem to be recognized as a command line query or in the code environment. Looks like it's a Linux tool. Is there an equivalent Win query? Thanks again.

Sorry, should have checked before my earlier reply. Anyway, I just found the Windows equivalent is visualinfo and below (attachment manager says its too big for a txt file) is the file visualinfo.txt created:

Again, post this kind of output in [code]...[/code] blocks. It forces a fixed-width font so the output is actually readable. Fixed that for you.

Your output looks good. You should of course be able to do it. Though you need someone with more Windows GL experience to know why it's not working for you. My suggestion: Try forcing MSAA on in your NVidia control panel. Verify that works. Try updating to the latest version of FreeGLUT -- maybe your GLUT is just too old. And failing that, bypass GLUT and just create your own GL context and window with MSAA capability.

I set the Antialiasing-Transparency option in the Nvidia control panel to Multisampling (it was off before). That's the only place in the control panel I see a multisampling option. But, still does not work, dang.

Re FreeGLUT, I am actually using glut-3.7.6 from xmission.com/~nate. Maybe that's the problem...

Try posting in the Windows forum. This sounds like a Windows or a FreeGLUT issue. I have never had any such problems with the NVidia drivers on Linux, including way back to and beyond your generation of GPU (back to GeForce 4 and FX actually), with GLUT or raw GLX.